Borla 400500 Specialty Muffler - Straight Flow Notched Neck Muffler

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Developed for truck applications and other applications that require a long body muffler. Notched necks for clamp in installation using 1" wide band style clamps 18330 (clamps not included). Alternate muffler with Un-Notched necks is 400436. If clamping use 3" wide band clamps 18006. Reversible design for installation flexibility. High-quality T-304 austenitic stainless steel will never rust. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. Best of all it's made in the USA and backed by Borla(r)'s Million-Mile warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand. Show more